# CVE-2021-22361: Missing authorization in eCNS280;eSE620X vESS

> Improper file access authorization in Huawei eCNS280 and eSE620X allows low-privilege attackers to escalate privileges and disrupt services.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Jun 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-2mqr-75c4-43q9

## What is CVE-2021-22361?

CVE-2021-22361 is a high-severity missing authorization vulnerability in eCNS280;eSE620X vESS, published on 22 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

There is an improper authorization vulnerability in eCNS280 V100R005C00, V100R005C10 and eSE620X vESS V100R001C10SPC200, V100R001C20SPC200. A file access is not authorized correctly. Attacker with low access may launch privilege escalation in a specific scenario. This may compromise the normal service.

## Which versions are affected by CVE-2021-22361?

It affects 2 products.


Products: Huawei Ecns280 Firmware, Huawei Ese620x Vess Firmware.

## How do I fix CVE-2021-22361?

No fix has been published for CVE-2021-22361 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-22361 being exploited?

There is no known exploitation of CVE-2021-22361 in the wild and no public exploit code.

## Other vulnerabilities in eCNS280;eSE620X vESS

- [CVE-2021-22292](https://insights.sbomify.com/CVE-2021-22292/): Denial of service in eCNS280 (high 7.5)
- [CVE-2021-22338](https://insights.sbomify.com/CVE-2021-22338/): XML external entity in eCNS280 (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-22361 and fix it if it is affected.

What it is: CVE-2021-22361 is a high-severity missing authorization vulnerability in eCNS280;eSE620X vESS, published on 22 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-22361 in the wild and no public exploit code.

Affected product: eCNS280;eSE620X vESS. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-22361/ (Markdown: https://insights.sbomify.com/CVE-2021-22361/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-22361
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-22361
- OSV: https://osv.dev/vulnerability/CVE-2021-22361

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-22361/
Summaries are generated and may contain mistakes; the official description above is the record.